Question

我正在尝试正确建立不同实体之间的关系。

观察代码我认为一切都很好并且连贯（我已经验证了属性与Hibernate映射配置文件中建立的名称相同），但是，它不能编译。所以很明显它不行。显示的错误如下：

org.springframework.beans.factory.BeanCreationException: Error creating
bean with name 'org.springframework.dao.annotation.
PersistenceExceptionTranslationPostProcessor#0' defined in class path
resource [spring.cfg.xml]: Initialization of bean failed; nested 
exception is org.springframework.beans.factory.BeanCreationException: 
Error creating bean with name 'sessionFactory' defined in class path
resource [spring.cfg.xml]: Invocation of init method failed; nested
exception is org.hibernate.HibernateException: Unable to instantiate
default tuplizer [org.hibernate.tuple.entity.PojoEntityTuplizer]

pom.xml文件如下

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.igalia.mswl</groupId>
<artifactId>snippr</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>snippr Maven Webapp</name>
<url>http://maven.apache.org</url>

<!-- =================================================================== -->
<!-- Default values for properties.These default values are expected to
    be valid for most profiles.Specific profiles can overwrite values when necessary. -->
<properties>
    <!-- Data source properties -->
    <dataSource.user>test</dataSource.user>
    <dataSource.password>test</dataSource.password>
    <dataSource.jndiName>jdbc/testdb</dataSource.jndiName>
    <testDataSource.user>${dataSource.user}</testDataSource.user>
    <testDataSource.password>${dataSource.password}</testDataSource.password>
    <org.springframework.version>3.0.5.RELEASE</org.springframework.version>
    <spring-security.version>3.0.5.RELEASE</spring-security.version>
</properties>

<!-- =================================================================== -->
<!-- Profiles. * The build is always executed by selecting at least two
    non-exclusive profiles. By default, such profiles are "dev" and "postgresql"
    (meaning "use PostgreSQL assuming a development environment"). * General
    profiles. There are two general (database-independent) profiles: "dev" and
    "prod". The former is used for development (including testing) and the latter
    is used for production (including testing). As shown below, two dataSources
    (databases schemas) are used in both profiles: one for running (dataSource)
    and another one for the Maven test fase (testDataSource). Note the Maven
    test fase is executed both with development and production profiles. * Database-specific
    profiles. There is a profile for each supported database. * Specific profiles
    can be defined to better adapt to a particular environment by overwriting/adding
    properties and/or including other chunks of valid XML. * Usage: + mvn <<goal>>
    => Execute <<goal>> with default profiles. + mvn -Pdev,<<database>> <<goal>
    => Execute <<goal>> with "dev" and <<database>> profiles. + mvn -Pprod,<<database>>
    <<goal>> => Execute <<goal>> with "prod" and <<database>> profiles. + Note
    that when using -P option all desired profiles must be specified (e.g. "-Pprod"
    with the intention to select "prod" and the default database profile is not
    correct; "-Pprod,<<database>>" must be used instead). * Examples: + mvn <<goal>>
    + mvn -Ppostgresql,prod <<goal>> + mvn -Ppostgresql,dev <<goal>> -->

<profiles>
    <!-- Development profile -->
    <profile>
        <id>dev</id>
        <activation>
            <activeByDefault>true</activeByDefault>
        </activation>
        <properties>
            <!-- SnippR environment properties -->
            <snippr.mode>dev</snippr.mode>
            <!-- Hibernate properties -->
            <hibernate.show_sql>true</hibernate.show_sql>
            <hibernate.format_sql>true</hibernate.format_sql>
            <hibernate.use_sql_comments>true</hibernate.use_sql_comments>
            <hibernate.hbm2ddl.auto>update</hibernate.hbm2ddl.auto>
        </properties>
    </profile>

    <!-- MySQL profile -->
    <profile>
        <id>mysql</id>
        <properties>
            <!-- JDBC driver properties -->
            <jdbcDriver.groupId>mysql</jdbcDriver.groupId>
            <jdbcDriver.artifactId>mysql-connector-java</jdbcDriver.artifactId>
            <jdbcDriver.version>5.0.5</jdbcDriver.version>
            <jdbcDriver.className>com.mysql.jdbc.Driver</jdbcDriver.className>
            <!-- Data source properties -->
            <dataSource.url>jdbc:mysql://localhost/testdb</dataSource.url>
            <!-- Hibernate properties -->
            <hibernate.dialect>org.hibernate.dialect.MySQLInnoDBDialect</hibernate.dialect>
        </properties>
    </profile>

    <!-- PostgreSQL profile -->
    <profile>
        <id>postgresql</id>
        <activation>
            <activeByDefault>true</activeByDefault>
        </activation>
        <properties>
            <!-- JDBC driver properties -->
            <jdbcDriver.groupId>postgresql</jdbcDriver.groupId>
            <jdbcDriver.artifactId>postgresql</jdbcDriver.artifactId>
            <jdbcDriver.version>8.3-603.jdbc4</jdbcDriver.version>
            <jdbcDriver.className>org.postgresql.Driver</jdbcDriver.className>
            <!-- Data source properties -->
            <dataSource.url>jdbc:postgresql://localhost/testdb</dataSource.url>
            <!-- Hibernate properties -->
            <hibernate.dialect>org.hibernate.dialect.PostgreSQLDialect</hibernate.dialect>
            <!-- <databasetable.prefix>public.</databasetable.prefix> -->
        </properties>
    </profile>

</profiles>

<!-- =================================================================== -->
<!-- Repository management -->
<repositories>
    <repository>
        <id>zkoss</id>
        <url>http://mavensync.zkoss.org/maven2/</url>
        <releases>
            <enabled>true</enabled>
        </releases>
    </repository>
    <repository>
        <id>central</id>
        <url>http://repo1.maven.org/maven2</url>
        <releases>
            <enabled>true</enabled>
        </releases>
    </repository>
</repositories>

<!-- =================================================================== -->
<!-- Dependency management -->
<dependencies>

    <!-- JUnit -->
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.4</version>
        <scope>test</scope>
    </dependency>

    <!-- Log4j -->
    <dependency>
        <groupId>log4j</groupId>
        <artifactId>log4j</artifactId>
        <version>1.2.16</version>
    </dependency>

    <!-- ZK -->
    <dependency>
        <groupId>org.zkoss.zk</groupId>
        <artifactId>zk</artifactId>
        <version>5.0.11</version>
    </dependency>
    <dependency>
        <groupId>org.zkoss.zk</groupId>
        <artifactId>zul</artifactId>
        <version>5.0.11</version>
    </dependency>
    <dependency>
        <groupId>org.zkoss.zk</groupId>
        <artifactId>zkplus</artifactId>
        <version>5.0.11</version>
    </dependency>

    <dependency>
        <groupId>org.zkoss.zk</groupId>
        <artifactId>zkspring-core</artifactId>
        <version>3.0</version>
    </dependency>
    <dependency>
        <groupId>org.zkoss.zk</groupId>
        <artifactId>zkspring-security</artifactId>
        <version>3.0</version>
    </dependency>
    <!-- Spring -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
        <version>${org.springframework.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-test</artifactId>
        <version>${org.springframework.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-orm</artifactId>
        <version>${org.springframework.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>
        <version>${org.springframework.version}</version>
    </dependency>

    <!-- Hibernate -->
    <dependency>
        <groupId>org.apache.geronimo.specs</groupId>
        <artifactId>geronimo-jta_1.0.1B_spec</artifactId>
        <version>1.1.1</version>
    </dependency>

    <dependency>
        <groupId>javassist</groupId>
        <artifactId>javassist</artifactId>
        <version>3.12.1.GA</version>
    </dependency>

    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-core</artifactId>
        <version>3.6.5.Final</version>
    </dependency>

    <!-- AspectJ -->
    <dependency>
        <groupId>org.aspectj</groupId>
        <artifactId>aspectjtools</artifactId>
        <version>1.5.4</version>
    </dependency>

    <!-- JDBC driver -->
    <dependency>
        <groupId>${jdbcDriver.groupId}</groupId>
        <artifactId>${jdbcDriver.artifactId}</artifactId>
        <version>${jdbcDriver.version}</version>
    </dependency>

    <!-- Spring Security -->
    <dependency>
        <groupId>org.springframework.security</groupId>
        <artifactId>spring-security-core</artifactId>
        <version>${spring-security.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.security</groupId>
        <artifactId>spring-security-web</artifactId>
        <version>${spring-security.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.security</groupId>
        <artifactId>spring-security-config</artifactId>
        <version>${spring-security.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.security</groupId>
        <artifactId>spring-security-acl</artifactId>
        <version>${spring-security.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.security</groupId>
        <artifactId>spring-security-taglibs</artifactId>
        <version>${spring-security.version}</version>
    </dependency>
</dependencies>

<build>
    <finalName>snippr</finalName>

    <!-- =============================================================== -->
    <!-- Filtering -->
    <resources>

        <!-- Apply filtering to files matching the following expressions in src/main/resources. -->
        <resource>
            <directory>src/main/resources</directory>
            <filtering>true</filtering>
            <includes>
                <include>*spring.cfg.xml</include>
                <include>*hibernate.cfg.xml</include>
                <include>jetty-env.xml</include>
            </includes>
        </resource>

        <!-- Continue considering resources the files in src/main/resources, but
            without applying filtering. -->
        <resource>
            <directory>src/main/resources</directory>
        </resource>
    </resources>

    <testResources>
        <!-- Apply filtering to files matching the following expressions in src/test/resources. -->
        <testResource>
            <directory>src/test/resources</directory>
            <filtering>true</filtering>
            <includes>
                <include>*spring.cfg-test.xml</include>
                <include>*hibernate.cfg-test.xml</include>
            </includes>
        </testResource>

        <!-- Continue considering resources the files in src/test/resources, but
            without applying filtering. -->
        <testResource>
            <directory>src/test/resources</directory>
        </testResource>
    </testResources>

    <!-- Maven plugin -->
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <configuration>
                <verbose>true</verbose>
                <source>1.6</source>
                <target>1.6</target>
                <encoding>UTF-8</encoding>
            </configuration>
        </plugin>

        <plugin>
            <groupId>org.mortbay.jetty</groupId>
            <artifactId>maven-jetty-plugin</artifactId>
            <version>6.1.18</version>
            <configuration>
                <jettyEnvXml>target/classes/jetty-env.xml</jettyEnvXml>
                <reload>manual</reload>
                <stopPort>9966</stopPort>
                <stopKey>stop</stopKey>

                <!-- Log to the console. -->
                <requestLog implementation="org.mortbay.jetty.NCSARequestLog">
                    <append>true</append>
                </requestLog>
            </configuration>

            <dependencies>
                <dependency>
                    <groupId>${jdbcDriver.groupId}</groupId>
                    <artifactId>${jdbcDriver.artifactId}</artifactId>
                    <version>${jdbcDriver.version}</version>
                </dependency>
            </dependencies>

        </plugin>

    </plugins>

</build>
</project>

Snippr.hbm.xml如下：

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping package="org.snippr.business.entities" default-access="field">

<!-- User -->
<class name="User" table="users">
    <id name="id" access="property">
        <generator class="native" />
    </id>

    <property name="firstName" column="first_name" />
    <property name="lastName" column="last_name" />
    <property name="username" column="user_name" unique="true" />
    <property name="password" column="password" />
    <property name="email" column="email" />
    <property name="enabled" column="enabled" />
    <property name="accountNonExpired" column="account_non_expired" />
    <property name="credentialsNonExpired" column="credentials_non_expired" />
    <property name="accountNonLocked" column="account_non_locked" />

    <set name="roles" table="users_roles" lazy="false">
        <key column="user_id" />
        <many-to-many column="role_id" entity-name="org.snippr.business.entities.Role" />
    </set>
    <set name="snippets" inverse="true" cascade="all-delete-orphan" >
        <key column="user_id" />
        <one-to-many class="org.snippr.business.entities.Snippet" />
    </set>
    <set name="labels" inverse="true" cascade="all-delete-orphan" >
        <key column="user_id" />
        <one-to-many class="org.snippr.business.entities.Label" />
    </set>
    <set name="comments" inverse="true"  cascade="all-delete-orphan" >
        <key column="user_id" />
        <one-to-many class="org.snippr.business.entities.Comment" />
    </set>
</class>

<!-- Role -->
<class name="Role" table="roles">
    <id name="id" access="property">
        <generator class="native" />
    </id>

    <property name="roleName" column="role_name" />
</class>

<!-- Snippet -->
<class name="Snippet" table="snippet">
    <id name="id" access="property">
        <generator class="native" />
    </id>

    <property name="title" unique="true" />
    <property name="description" />
    <set name="snippetCodes" inverse="true" cascade="all-delete-orphan">
        <key column="snippet_id" />
        <one-to-many class="org.snippr.business.entities.SnippetCode" />
    </set>
    <many-to-one name="user" class="org.snippr.business.entities.User"
        column="user_id" not-null="true" />
    <many-to-one name="label" class="org.snippr.business.entities.Label"
        column="label_id" not-null="true" />
</class>

<!-- SnippetCode -->
<class name="SnippetCode" table="snippet_code">
    <id name="id" access="property">
        <generator class="native" />
    </id>

    <property name="code" unique="false" type="text" />
    <many-to-one name="snippet" class="org.snippr.business.entities.Snippet"
        column="snippet_id" not-null="true" />
</class>

<!-- Label -->
<class name="Label" table="label">
    <id name="id" access="property">
        <generator class="native" />
    </id>

    <property name="name" unique="false" />

    <many-to-one name="user" class="org.snippr.business.entities.User"
        column="user_id" not-null="true" />
    <set name="snippets" inverse="true" cascade="save-update">
        <key column="label_id" />
        <one-to-many class="org.snippr.business.entities.Snippet" />
    </set>
</class>

<!-- Comment -->
<class name="Comment" table="comment">
    <id name="id" access="property">
        <generator class="native" />
    </id>

    <property name="text" column="text"/>
    <property name="email" column="email"/>
    <property name="url" column="url"/>

    <many-to-one name="user" class="org.snippr.business.entities.User"
        column="user_id" not-null="true" />
</class>

</hibernate-mapping>

Maven下载的.jar文件如下

antlr-2.7.6.jar aopalliance-1.0.jar aspectjrt-1.6.8.jar
aspectjtools-1.5.4.jar aspectjweaver-1.6.8.jar bsh-2.0b4.jar
commons-collections-3.1.jar commons-fileupload-1.2.1.jar
commons-logging-1.1.1.jar dom4j-1.6.1.jar
的geronimo-jta_1.0.1B_spec-1.1.1.jar
冬眠-公地注解-3.2.0.Final.jar
hibernate-core-3.6.5.Final.jar hibernate-jpa-2.0-api-1.0.0.Final.jar
javassist-3.12.1.GA.jar jta-1.1.jar log4j-1.2.16.jar
postgresql-8.3-603.jdbc4.jar slf4j-api-1.6.1.jar
spring-aop-3.0.3.RELEASE.jar spring-asm-3.0.5.RELEASE.jar
spring-beans-3.0.5.RELEASE.jar spring-context-3.0.5.RELEASE.jar
弹簧上下文支持-3.0.3.RELEASE.jar
spring-core-3.0.5.RELEASE.jar spring-expression-3.0.3.RELEASE.jar
spring-jdbc-3.0.5.RELEASE.jar spring-orm-3.0.5.RELEASE.jar
弹簧安全-ACL-3.0.5.RELEASE.jar
弹簧安全-CONFIG-3.0.5.RELEASE.jar
弹簧安全核心3.0.5.RELEASE.jar
弹簧安全标签库-3.0.5.RELEASE.jar
弹簧安全web的3.0.5.RELEASE.jar
弹簧 - 测试 - 3.0.5.RELEASE.jar
spring-tx-3.0.5.RELEASE.jar spring-web-3.0.5.RELEASE.jar
zcommon-5.0.11.jar zcommons-el-1.1.0.jar zk-5.0.11.jar
zkplus-5.0.11.jar zkspring-core-3.0.jar zkspring-security-3.0.jar
zul-5.0.11.jar zweb-5.0.11.jar

任何Java专家都能看到这里发生的事情或提供任何线索？正如我所说，我已经验证了名称属性，但我没有看到任何拼写错误。

Answer 1

有时在类路径中没有javassist.jar时会发生此错误。正如我看到你宣布的那样。确保您拥有类属性的所有getter和setter。

Answer 2

哦，狗屎！我感觉真的很蠢。我确信我已经验证了所有实例的属性。

该错误是由于其中一个名为“Comment”的类中的错误引起的。我已经阅读了堆栈跟踪中的最新错误，但是如果我继续读取堆栈跟踪，我可以找到以下内容：

Caused by: org.hibernate.PropertyNotFoundException: field [user] not found on org.snippr.business.entities.Comment
at org.hibernate.property.DirectPropertyAccessor.getField(DirectPropertyAccessor.java:182)
at org.hibernate.property.DirectPropertyAccessor.getField(DirectPropertyAccessor.java:189)
at org.hibernate.property.DirectPropertyAccessor.getField(DirectPropertyAccessor.java:174)
at org.hibernate.property.DirectPropertyAccessor.getGetter(DirectPropertyAccessor.java:197)
at org.hibernate.mapping.Property.getGetter(Property.java:304)
at org.hibernate.tuple.entity.PojoEntityTuplizer.buildPropertyGetter(PojoEntityTuplizer.java:297)
at org.hibernate.tuple.entity.AbstractEntityTuplizer.<init>(AbstractEntityTuplizer.java:155)
at org.hibernate.tuple.entity.PojoEntityTuplizer.<init>(PojoEntityTuplizer.java:77)

类Comment中没有属性'user'。映射和类Comment之间存在不一致。 映射是指属性用户，但是注释具有属性Set users 。这个类是不正确的（我在错误的意义上建立了1-N的关系）。

使用Hibernate映射的BeanCreationException（使用Spring和Maven）

2 个答案: